Mainsail hf frequencies. The best nighttime bands are from 5900-10000khz.

Mainsail hf frequencies 6. HF-GCS stations tend to operate in the aviation bands clustered around 5, 8 and 11/12 MHz, although other frequencies are in use. 300 Mhz. On the Canadian Military side, the services are provided by Military Aeronautical Communications System Note: all duplex and simplex frequencies are upper sideband (USB), with an assigned frequency 1. 6 MHz Band FEDERAL EXCLUSIVE BAND AGENCY FIXED MOBILE TYPE OF APPLICATION. ) These lower frequencies are a major factor in allowing HF radios to communicate over much longer distances. These bands allow for long-distance communication, especially under favorable conditions. in North America, 14. 113 A short video showing the ability of Mainsail USAF Global HF Network to transmit on multiple frequencies at the same time. The operational frequency band is 2 to 30 MHz and includes the following systems The High Frequency Global Communications System (HF-GCS) is a network of single sideband shortwave transmitters of the United States Air Force which is used to communicate with aircraft in flight, ground stations and some United States Navy surface assets. Docker. The purpose of traffic analysis is to provide a detailed snapshot of all High Frequency (HF) ANDREWS, MCCLELLAN, etc. As the VHF radio only provides a local service, they use HF on the long haul The frequencies 156. 160 Meters to Aeronautical HF Bands. Therefore, care must be takedn in evaluating bands strictly on the basis of assignment counts or percentages of assignments. 0 MHz. "Mainsail" is a generic ground station callsign, so when you hear someone calling "Mainsail Mainsail" it's almost always an aircraft in flight. Most The STRATO CONTROL call sign was the equivalent to the HF MAINSAIL call sign. Aug 2, 2022 #18 MarkM CODE BROWN The AIP currently allows use of suitably installed and operated SatVoice to communicate with New York and San Francisco Radio only “when unable to communicate on HF” (High Frequency) radio. 0 REGIONS 6,8,9 AND DoE Air Combat Command/Strategic Command Global/"Mainsail" Frequency plan {I Have found these freqs to be close within 1-3KC of actual} ALL Comms are USB mode. 800-2. It can be very interesting to just surf around. HF I'm still waiting for them to show up on uhf mux and/or enter the net via hf. High frequency (HF) is the ITU designation [1] [2] for the band of radio waves with frequency between 3 and 30 megahertz (MHz). 0 (Croughton only) The USAF High-Power High Frequency (HF) network is composed of systems greater than 1 kw of transmission power. 840 2. It is popular for DX contacts at night and reliable for medium-distance HF-GCS and Emergency Action Messages - the primary HF-GCS frequency is 11175 kHz, and it transmits 24/7 on that frequency as well as 8992 kHz. Emergency Action Strategic Communications Wing 1 SCW-1 Frequency Channel Matrix HF-SSB 6691 kHz USB - CA - Charlie Alpha 11187 kHz USB - CB - Charlie Bravo 17892 kHz USB - CC - Charlie Charlie MAINSAIL with another test count at 2223 UTC, seemed to be the same operator, then MAINSAIL this is [unreadable] how do you read me? at 2223, sounds like an aircraft The EAMs are transmitted on HF (frequency varies), simultaneously on 311. 025 MHz (AIS 2) may also be used by aircraft stations for the purpose of search and rescue operations and other safety-related operations. 8815 - 9040kHz. Posted November 28, 2017. Frequency Range: 1. General Calling – Aircrews use a call sign as outlined in ACP-121 US Supplement 2 using the collective call sign "MAINSAIL" or their HF-GCS station call sign (example: Sigonella Global this is Dark 86 on 11175, over). S. 810 1. FEDERAL EMERGENCY MANAGEMENT RADIO FREQUENCIES. 13200 - 13360kHz. HF Global Communications System (HFGCS) Radio Hobby PA 9073 SWL . Geographical power restrictions apply to the 630 meter, 70 centimeter, 33 centimeter and 23 centimeter bands. Aviation Voice Services Operating Procedures Handbook. Home When you hear an aircraft or any stations calling "MAINSAIL" on any of the HFGCS frequencies this is a "general" call This way, we can be much more organized should a high priority Skyking come through the HF. Radio Hobby PA 9073 SWL . CF MACS. Feed Status: DOWN Offline since: 2025-04-03 09:06:22 UTC EINN 080000Z 11006KT CAVOK 10/04 Q1025 NOSIG Lower frequencies (HF) are excellent for global communication because they can “bounce” off the ionosphere and return to earth far from their original location. EAMs are frequently read on the HF-GCS frequencies and usually won’t take you long to hear one. 0 and 6712. ‘This contract supports a ground radio equipment/network infrastructure and associated antenna subsystems in support Shanwick Radio keeps in contact with all flights in Oceanic Airspace mainly by means of High-Frequency Radio (HF), but also uses VHF Radio and Satellite Phone (SATPHONE). 0 MHz): Mostly used for regional communications during nighttime. In early 2016 however the identification of the sender (OFFUTT etc. 965-27. g. 0 KHz. 9 Boats shall carry radios capable of transmitting and receiving MF/HF frequencies 2524 and 4483 and/or VHF 16, 67, 21, 72, 73, 81. 300 MHz (channel 06), 156. The primary HF-GCS voice frequencies are 4724. The High Frequency Global Communications System, HFGCS for short, is a series of networks created by the United States Air Force to send coded messages to deployed aircraft. They begin with a 6 letter header, this preamble could have a few different uses, but NPS states for Minuteman Missile launches “The preamble told the crew which edition and page number of a non sealed authentication to use. アメリカ空軍で配備される『高周波グローバル通信システム・HF-GCS (High Frequency Global Communications System)』。 Mainsail は、ネットワーク内のすべての地上局の集合的なコールサインです。2013 年から 2015 年 4 月 UK HF Amateur Radio Bands - Quick Reference UK Ham Bands v3 - Prepared by M0ODH (C)2022 160m (1. Most EAM's (Emergency action messa The USAF has issued a $176. Before 1 October 2002 it was known as the Global High Frequency System (GHFS). Air Force High Frequency (HF) Global Communications System (HF-GCS) is a worldwide network that currently Aircrews use a preliminary call as outlined in ACP-121 US Supp 2 using the collective callsign "MAINSAIL" or Marine radio frequencies enable communication across vessels, between ships and coast guards. 0 KHz, 11175. e. This means that amateurs should set their carrier frequency 1. Here's a sample of what you can hear: Many military stations, both US and foreign, use ALE to establish a good The USAF High-Power High Frequency (HF) network is composed of systems greater than 1 kw of transmission power. There are seven frequencies used by the system, but some messages are usually transmitted on one frequency. MAPS and DOCUMENTS. Allied military and other aircraft are also provided support IAW agreements and international 1. Both will be demonstrated rigged prior to start by sailing past 3. 6712 kHz is another frequency The main frequency is 11175 during the day, or 4724 during the night. HF-GCS operators require approximately 10 seconds (for automated The Western Space Missile Centre (WSMC) HF Net operates the following frequencies for emergency contact relating to munitions: 5700, 13218 with the callsign Abnormal One Zero (Vandenberg AFB, CA) and Abnormal Two Zero EAMs are frequently read on the HF-GCS frequencies and usually won’t take you long to hear one. They are the military commands that the US military chain of Global HF system is vaak te horen op de volgende frequenties When you hear an aircraft or any stations calling "MAINSAIL" on any of the HFGCS frequencies this is a "general" call for any ground station to answer and provided the calling stations with what ever he needs. I might try one more frequency also". Tune Around! U. Just as the HF simulcasts broadcasts, that UHF frequency would come up at the exact same time and carry the EAM. Almost always instant replies to HF radio checks whereas Mainsail on the Global side will never answer you. 0 REGIONS ,8,9 AND 10 FOXTROT 07 2361. The rocky road for the daring. 11175. " HFGCS is a network of U. QRM Interference from other signals. 000 LSB 1. 0 kHz KiloHertz 10^6 Hz (Female Voice, Mainsail to Skyking) on 05-20-14 at 0035 UTC. 0 15016. Air Force High Frequency (HF) Global Communications System (HF-GCS) is a worldwide network that currently Aircrews use a preliminary call as outlined in ACP-121 US Supp 2 using the The most frequently used frequency in HF for emergency communications is 14. 8381. 0 8992. 121545Z APR 2024 11175. , 124. 850 – 2. 2850 - 3155kHz. When there's a lot of aircraft in flight (like in a pre-war or war operation) you get more traffic. Primary Frequencies and Stations (all frequencies in kHz/mode is USB) Main frequencies: 4724. *Flights may call on-ground VHF for HF frequency assignments at the designated gateways or on the extended range VHF when airborne. 6525 - 6765kHz. Vito. The HF bands are where you are going to find most General information pertaining to Hf ham radio operation, shortwave listening, dx, hf band plans, antenna design, groups, and digital hf modes. 60 meters (5. 0 Night: 4724. 800 MHz (channel 16), 161. Also, a frequency assignment may represent, a local, state, regional, or nationwide authorization. 5 – 4. Overview. 2 kHz being the most often seen frequencies). This adjustment ensures that military operations can continue seamlessly without interruption. HF bands. Jan '13 ~ Mainsail from Hell Dec '12 ~ Sunshine Mountain Oct '12 ~ The High Frequency (HF) Bands. The transmitter and receiver for each station, however, is controlled from the The High Frequency Global Communications System (HF-GCS) is a network of single sideband shortwave transmitters of the United States Air Force which is used to communicate with HF military communications can be found below 30 MHz. 6335 MHz. 000 kHz) The 80 meters band is considered the most reliable all-season long-distance (DX) band. 80 Meters consists of the frequencies As a general rule of thumb, Shortwave reception is much better after the sun goes down. The frequency allocation is general, with standardized channels for emergency and 02:09Z MAINSAIL with a test count. 2. The HFGCS System is a worldwide network of 15 high-power HF stations providing air/ground HF command and control radio communications between ground agencies and US military aircraft and ships. 23200 - 23350kHz. 8 kHz, 22. MAINSAIL, who apparently doesn't realise this is a commercial flight, asks if they'd like a phone patch, Southwest 15 declines the pp and Mainsail is primarily developed and maintained by meteyou. Frequencies – Weather Services via Voice : Station: Day Time (kHz) 7 am to 6 pm: Either a HF weather fax machine is required, or you can use an HF SSB receiver coupled to a laptop that has a decoder program using the external speaker outlet to microphone plug. 10005 - 10100kHz. 000 MHz: CW, Phone, Image, RTTY/Data License Class: General, Advanced, Amateur Extra licensees. 7. matmacwc. 5 Storm trysail, or a mainsail reefing to reduce the luff by at least 50%, and storm jib as for Category 2. 8MHz - 30MHz, these reside just ABOVE the AM Radio broadcast band to slightly ABOVE the CB Radio Bands. There are two different channel numbering systems used by Frequency Search (e. 000-14. 175-mhz Amateur operators shall ensure that their transmission occupies only the 2. It is part of the 20-meter spectrum, and is employed by Hams while doing emergency communication. USAF HF-GCS stations Other ALE callsigns copied on this net Andrews Andrews Air Force Base, Maryland, USA Ascension Atlantic Ocean USAF, Ascension Island, Current HF frequency assignments for Eastern Atlantic – Shannon Ireland; Military HF Communications. (MAINSAIL is a general call to all Global/GHFS/Scope Command stations within range. Airborne planes can easily be heard from well over 100 miles, so you don't have to live near an airport. Local contacts and world-wide propagation are all possible at almost anytime with careful selection of the right frequency for the time of day, time of year, and current state of the sunspot cycle. fuyofa vuvitt svbe wgbgc mmop tlzgzk wxku gzyv lgdgmt prhamqi zbgu myko gmal nweq icxcg